Cognomen Isidoro Leonardo (Isidoro Leonardo 
) , in all the world, is an extremely rare last name. The cognomen Isidoro Leonardo is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Isidoro Leonardo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isidoro Leonardo | Chile, Peru, Ecuador |